replace OVERRIDE and FINAL with override and final in media/

media/audio/agc_audio_stream.h

Index: media/audio/agc_audio_stream.h
diff --git a/media/audio/agc_audio_stream.h b/media/audio/agc_audio_stream.h
index 940d96412c2ba40c7fa131f01fdbfa9e79e4689e..f7b909fed4d9603f626373a3a2d968838786084e 100644
--- a/media/audio/agc_audio_stream.h
+++ b/media/audio/agc_audio_stream.h
@@ -138,14 +138,14 @@ class MEDIA_EXPORT AgcAudioStream : public AudioInterface {
   // be read in each AudioInputCallback::OnData() callback and fed to the
   // render-side AGC. User must call StartAgc() as well to start measuring
   // the microphone level.
-  virtual void SetAutomaticGainControl(bool enabled) OVERRIDE {
+  virtual void SetAutomaticGainControl(bool enabled) override {
     DVLOG(1) << "SetAutomaticGainControl(enabled=" << enabled << ")";
     DCHECK(thread_checker_.CalledOnValidThread());
     agc_is_enabled_ = enabled;
   }
 
   // Gets the current automatic gain control state.
-  virtual bool GetAutomaticGainControl() OVERRIDE {
+  virtual bool GetAutomaticGainControl() override {
     DCHECK(thread_checker_.CalledOnValidThread());
     return agc_is_enabled_;
   }